# Knowing Number Facts: Year 4

**Y****4 Knowing and Using Number Facts**

Children should have a good knowledge of addition and subtraction and identify the doubles of 2-digit numbers. They should know their multiplication facts up to 10 x 10. They should be able to identify pairs of fractions that total 1. More on this can be found in the Four Rules section.

**AUsing knowledge of addition, subtraction and place value**

Rapid resonse: add and subtract (pg 1)

Rapid response: Add and subtract (pg 2)

**BUse known number facts and place value to add or subtract**

Complete number sentences (pg 1)

Complete number sentences (pg 2)

Subtract a single digit from whole hundreds

Add 29, 39, 49 to any 2-digit numbers

**D Use known facts to multiply, double and halve**

Double multiples of 5 and halve multiples of 10

Multiply 2-digit multiples of 10 (pg 1)

Multiply 2-digit multiples of 10_(p2)

**E Use known number facts to divide**

Division problems to calculate mentally (pg 1)

## 1 Response

Fantastic, thank you x